#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main()
{
	int i,j=0;
	char s[100]=" I like ,,,... C++ programming!";
	char a[100]=""; 
	for(i=0;s[i]!='\0';i++)
	 {
	 	if((s[i]>='a'&&s[i]<='z')||(s[i]>='A'&&s[i]<='Z')||s[i]=='+')
	 	a[j++]=s[i];

	 }
	 a[j+1]='\0';
	 puts(a);
	 return 0;
	 } 
